diff --git a/core/com.b2international.snowowl.core.rest/src/com/b2international/snowowl/core/rest/util/PromiseMethodReturnValueHandler.java b/core/com.b2international.snowowl.core.rest/src/com/b2international/snowowl/core/rest/util/PromiseMethodReturnValueHandler.java
index 61894f3c29..b630357a42 100644
--- a/core/com.b2international.snowowl.core.rest/src/com/b2international/snowowl/core/rest/util/PromiseMethodReturnValueHandler.java
+++ b/core/com.b2international.snowowl.core.rest/src/com/b2international/snowowl/core/rest/util/PromiseMethodReturnValueHandler.java
@@ -33,6 +33,7 @@
 import com.b2international.snowowl.core.api.SnowowlRuntimeException;
 import com.b2international.snowowl.core.events.util.Promise;
 import com.b2international.snowowl.core.events.util.Response;
+import com.b2international.snowowl.eventbus.IEventBus;
 import com.google.common.collect.Iterables;
 
 import jakarta.servlet.http.HttpServletResponse;
@@ -99,8 +100,10 @@ private Response<?> setDeferredResult(DeferredResult<ResponseEntity<?>> result,
 			// see Spring Security issue not being able to properly prevent duplicate caching headers
 			// https://github.com/spring-projects/spring-security/issues/12865 
 			responseHeaders.forEach((entry) -> {
-				// XXX using set header here, for most of our use cases we only need a single response header, so overwrite anything that has been injected by Spring earlier
-				webRequest.getNativeResponse(HttpServletResponse.class).setHeader(entry.getKey(), entry.getValue());
+				if (!IEventBus.SEND_STACK_HEADER.equals(entry.getKey())) {
+					// XXX using set header here, for most of our use cases we only need a single response header, so overwrite anything that has been injected by Spring earlier
+					webRequest.getNativeResponse(HttpServletResponse.class).setHeader(entry.getKey(), entry.getValue());
+				}
 			});
 			
 			result.setResult(response);
diff --git a/core/com.b2international.snowowl.core/src/com/b2international/snowowl/core/repository/ApiRequestHandler.java b/core/com.b2international.snowowl.core/src/com/b2international/snowowl/core/repository/ApiRequestHandler.java
index ff5d907078..f9183a1295 100644
--- a/core/com.b2international.snowowl.core/src/com/b2international/snowowl/core/repository/ApiRequestHandler.java
+++ b/core/com.b2international.snowowl.core/src/com/b2international/snowowl/core/repository/ApiRequestHandler.java
@@ -87,7 +87,7 @@ public final void handle(IMessage message) {
 			message.fail(e.getCause());
 		} catch (ApiException e) {
 			if (IEventBus.RECORD_SEND_STACK) {
-				System.err.println(message.headers().get("sendStack"));
+				System.err.println(message.headers().get(IEventBus.SEND_STACK_HEADER));
 			}
 			
 			message.fail(e);
diff --git a/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/eventbus/IEventBus.java b/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/eventbus/IEventBus.java
index 99be45b16e..bbdbf87fe2 100644
--- a/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/eventbus/IEventBus.java
+++ b/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/eventbus/IEventBus.java
@@ -30,6 +30,11 @@ public interface IEventBus {
 	 * Feature flag for send-time stack tracing
 	 */
 	boolean RECORD_SEND_STACK = Boolean.getBoolean("eventbus.record.stack");
+	
+	/**
+	 * The message header used for send-time call stack tracing
+	 */
+	String SEND_STACK_HEADER = "sendStack";
 
 	/**
 	 * The address where handler registration and un-registration messages are sent.
diff --git a/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/internal/eventbus/EventBus.java b/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/internal/eventbus/EventBus.java
index 7660fb3c51..fc2670088c 100644
--- a/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/internal/eventbus/EventBus.java
+++ b/netty/com.b2international.snowowl.eventbus/src/com/b2international/snowowl/internal/eventbus/EventBus.java
@@ -164,7 +164,7 @@ public IEventBus publish(String address, Object message, String tag, Map<String,
 				
 				final String sendStack = sw.toString();
 				Map<String, String> headersWithStack = newHashMap(message.headers());
-				headersWithStack.put("sendStack", sendStack);
+				headersWithStack.put(SEND_STACK_HEADER, sendStack);
 				message.headers = Map.copyOf(headersWithStack);
 				
 			} catch (IOException unexpected) {
diff --git a/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRefSetMemberSearchRequest.java b/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRefSetMemberSearchRequest.java
index 7ee0ebe8d5..d5e4e65b85 100644
--- a/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRefSetMemberSearchRequest.java
+++ b/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRefSetMemberSearchRequest.java
@@ -42,9 +42,7 @@
 import com.b2international.snowowl.snomed.datastore.converter.SnomedReferenceSetMemberConverter;
 import com.b2international.snowowl.snomed.datastore.index.entry.SnomedDocument;
 import com.b2international.snowowl.snomed.datastore.index.entry.SnomedRefSetMemberIndexEntry;
-import com.google.common.collect.ImmutableSortedMap;
-import com.google.common.collect.Iterables;
-import com.google.common.collect.Sets;
+import com.google.common.collect.*;
 
 /**
  * @since 4.5
@@ -53,6 +51,16 @@ public final class SnomedRefSetMemberSearchRequest extends SnomedSearchRequest<S
 
 	private static final long serialVersionUID = 1L;
 
+	// Requesting the "value" field should load "booleanValue", "decimalValue", "integerValue", "stringValue" and "dataType" instead
+	private static final Multimap<String, String> REPLACE_VALUE_FIELD = ImmutableMultimap.<String, String>builder()
+		.putAll(SnomedRf2Headers.FIELD_VALUE, 
+			SnomedRefSetMemberIndexEntry.Fields.BOOLEAN_VALUE, 
+			SnomedRefSetMemberIndexEntry.Fields.DECIMAL_VALUE, 
+			SnomedRefSetMemberIndexEntry.Fields.INTEGER_VALUE, 
+			SnomedRefSetMemberIndexEntry.Fields.STRING_VALUE, 
+			SnomedRefSetMemberIndexEntry.Fields.DATA_TYPE)
+		.build();
+	
 	private static final SortedMap<String, SnomedRefsetMemberFieldQueryHandler<?>> SUPPORTED_MEMBER_FIELDS = ImmutableSortedMap.<String, SnomedRefsetMemberFieldQueryHandler<?>>naturalOrder()
 			// String types, ECL support
 			.put(SnomedRf2Headers.FIELD_REFERENCED_COMPONENT_ID, new SnomedRefsetMemberFieldQueryHandler<>(String.class, SnomedRefSetMemberIndexEntry.Expressions::referencedComponentIds, true))
@@ -147,6 +155,11 @@ protected Class<SnomedRefSetMemberIndexEntry> getDocumentType() {
 		return SnomedRefSetMemberIndexEntry.class;
 	}
 	
+	@Override
+	protected Multimap<String, String> collectFieldsToLoadReplacements() {
+		return REPLACE_VALUE_FIELD;
+	}
+	
 	@Override
 	protected Expression prepareQuery(BranchContext context) {
 		final Collection<String> referencedComponentIds = getCollection(OptionKey.REFERENCED_COMPONENT, String.class);
diff --git a/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRelationshipSearchRequest.java b/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRelationshipSearchRequest.java
index c1cdd485d1..0463cd9eca 100644
--- a/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRelationshipSearchRequest.java
+++ b/snomed/com.b2international.snowowl.snomed.datastore/src/com/b2international/snowowl/snomed/datastore/request/SnomedRelationshipSearchRequest.java
@@ -44,8 +44,12 @@
  */
 final class SnomedRelationshipSearchRequest extends SnomedComponentSearchRequest<SnomedRelationships, SnomedRelationshipIndexEntry> {
 
+	// Requesting the "value" field should load "numericValue", "stringValue" and "valueType" instead
 	private static final Multimap<String, String> REPLACE_VALUE_FIELD = ImmutableMultimap.<String, String>builder()
-		.putAll(SnomedRelationship.Fields.VALUE, SnomedRelationshipIndexEntry.Fields.NUMERIC_VALUE, SnomedRelationshipIndexEntry.Fields.STRING_VALUE, SnomedRelationshipIndexEntry.Fields.VALUE_TYPE)
+		.putAll(SnomedRelationship.Fields.VALUE, 
+			SnomedRelationshipIndexEntry.Fields.NUMERIC_VALUE, 
+			SnomedRelationshipIndexEntry.Fields.STRING_VALUE, 
+			SnomedRelationshipIndexEntry.Fields.VALUE_TYPE)
 		.build();
 
 	enum OptionKey {